App Development Question

I need an explanation for this App Development question to help me study.

You are advised to make your work clear and well-presented. This includes filling your information on the cover page.
You MUST show all your work, and text must not be converted into an image, unless specified otherwise by the question
The work should be your own, copying from students or other resources will result in ZERO mark.
Use Times New Roman font for all your answers

Requirements: ANSWER THE QUESTIONATTACHMENTSassignments_1__it40